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10 Cards in this Set
- Front
- Back
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Nebular theory |
the theory that the solar and stellar systems were developed from a primeval nebula.
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mineral |
a solid inorganic substance of natural occurrence.
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silicates |
a salt in which the anion contains both silicon and oxygen, especially one of the anion SiO42
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basalt |
a dark, fine-grained volcanic rock that sometimes displays a columnar structure. It is typically composed largely of plagioclase with pyroxene and olivine
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relative time |
When we describe a sequence of events, such as an event or rock layer being older or younger than another, we refer to this as relative time
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absoulte time |
ame is called duration: relative, apparent and common time, is some sensible and external (whether accurate or unequable) measure of duration by the means of motion, which is ... |
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foilated |
geology refers to repetitive layering inmetamorphic rocks |
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banded |
term to describe bands or layers that can sometimes be seen in rock that formed from the substance molten rock or magma. |
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dikes |
is a type of later vertical rock between older layers of rock. |
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pluton |
a body of intrusive igneous rock. |
